.mask {
    display: flex;
    justify-content: center;
    align-items: center;
    background: rgba(0, 0, 0, 0.4);
    position: fixed;
    left: 0;
    top: 0;
    width: 100vw;
    height: 100vh;
    z-index: 9;
    .mask-box {
        width: 500px;
        background: #2b3139;
        border-radius: 12px;
        border: 1px solid #3f454f;
        padding: 33px 60px;
        // position: relative;
    }
    .mask-title {
        font-size: 28px;
        margin-bottom: 50px;
        color: var(--main);
    }
    .mask-close {
        width: 16px;
        height: 16px;
        right: 20px;
        top: 20px;
        position: absolute;
        background: #2773d7;
    }
    .mask-back {
        width: 16px;
        height: 20px;
        left: 20px;
        top: 45px;
        position: absolute;
        background: #2773d7;
    }
}
